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The relay type STR is intended for the complete protection of high power motors, with medium voltage or low voltage supply. Several protection functions, incorporated in a single relay, assure the protection of the motor against all the different fault conditions: overheating caused by mechanical overload or by an abnormal supply, locked rotor, too long starting, interruption of one phase conductor, current unbalance, short circuit between phases, short circuit between turns, earth fault, underload running, too frequent startings.
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7SD5 relay provides full scheme differential protection and incorporates all functions usually required for the protection of power lines. It is designed for all power and distribution levels and protects lines with two up to six line ends, to provide high-speed and phase-selective fault clearance.
Application
Differential protection with phase-segregated measurement
Sensitive measuring stage for high-resistance faults
Non-switched distance protection with 6 measuring systems
High resistance ground (earth)-fault protection for 1 and 3-pole tripping
Phase-selective intertripping
Tele (pilot) protection
Weak-infeed protection
Fault locator
Power swing detection/tripping
3-stage overcurrent protection
STUB bus protection
Switch-onto-fault protection
Over/undervoltage protection
Over/underfrequency protection
Auto-reclosure
Synchro-check
Breaker failure protection
Overload protection
Lockout function
Digital communication via
fiber-optic cables
digital communication networks
pilot wires or ISDN connections
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The SIPROTEC 4 7UM61 and 7UM62 protection relays can do more than just protect. They also offer numerous additional functions. Be it earth faults, short-circuits, overloads, overvoltage, overfrequency or underfrequency asynchronous conditions, protection relays assure continued operation of power stations. They are compact units which has been specially developed and designed for the protection of small, medium-sized and large generators.
They integrate all the necessary protection functions and are particularly suited for the protection of:
Hydro and pumped-storage generators
Co-generation stations
Private power stations using regenerative energy sources such as wind or biogases
Diesel generator stations
Gas-turbine power stations
Industrial power stations
Conventional steam power stations.
The combination of functions incorporated in the 7UM62 also offers excellent all-round protection for transformers, large asynchronous motors, synchronous motors.
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The SIPROTEC 7SJ602 is a numerical overcurrent relay which, in addition to its primary use in radial distribution networks and motor protection, can also be employed as backup for feeder, transformer and generator differential protection. It provides definite-time and inverse-time overcurrent protection along with overload and negative-sequence protection for a very comprehensive relay package. In this way, equipment such as motors can be protected against asymmetric and excessive loading.
Feeder protection
Overcurrent-time protection
Sensitive earth-fault detection
Directional sensitive earth-fault detection
Displacement voltage
Disk emulation
Overload protection
Breaker failure protection
Negative-sequence protection
Cold load pickup
Auto-reclosure
Trip circuit supervision
Motor protection
Starting time supervision
Locked rotor
Restart inhibit
Undercurrent monitoring
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The SEL-551 Overcurrent/Reclosing Relay replaces the many relays, control switches, and wiring required in traditional distribution substation protection and control panels. The relay also replaces line recloser control packages at a fraction of the cost. Protect distribution feeders, distribution buses, transformers, capacitors, and circuit breakers. Select the "fast bus" trip scheme when protecting a distribution bus. Choose "fast" or "slow" curve operation to allow for cold load pickup. Connect the separate neutral current input to accommodate core-balance current transformers, separate neutral current transformers, tertiary winding current transformers, or CT ground residual circuits.
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Provide simple and economical protection for transformers, breakers, motors, capacitor banks, feeders, and other apparatus. Install the SEL-501 Relay in two-high breaker switchgear to protect two separate feeders, providing primary or backup protection on each feeder.
Set one side of the dual relay for a feeder application, and set the other side for a breaker failure application using the simple menu system. Connect one side of the dual relay to transfomer high-side CTs for transformer overload and overcurrent protection. Connect the other side of the relay to the neutral CT on the wye side of a delta-wye transformer for sensitive internal ground fault protection and backup external fault protection. Apply both sets of overcurrent relay elements on the same feeder, and cover a wide range of fault currents, while maintaining accuracy of measured load and fault current magnitudes.
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Multifunction Protection Relay SIPROTEC 4 7SJ61/62/63/64
The SIPROTEC 4 units are numerical protection relay that also performs control and monitoring functions and therefore supports the user in cost-effective power system management, and ensures reliable supply of electric power to the customers. Local operation has been designed according to ergonomic criteria. A large, easy-to-read graphic display was a major design aim.
Protection functions
Time-overcurrent protection
Directional time-overcurrent protection
Sensitive dir./non-dir. earth-fault detection
Displacement voltage
Intermittent earth-fault protection
High-impedance restricted earth fault
Inrush restraint
Motor protection
Overload protection
Temperature monitoring
Under-/overvoltage protection
Under-/overfrequency protection
Rate-of-frequency-change protection
Power protection (e.g. reverse, factor)
Breaker failure protection
Negative-sequence protection
Phase-sequence monitoring
Synchronization
Auto-reclosure
Fault locator
Lockout
Feature: IEC 61850
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Type IAC relays are used in the protection of industrial and utility power systems against either phase or ground overcurrent. They are single phase (although some models contain more than one unit), non-directional, current sensitive, AC devices. The basic operating mechanism (the time unit) produces one of several available operating characteristics. The operating time is inversely related to operating current which permits close coordination with other protective devices. It consists of a magnetic core operating coil, an induction disc, damping magnet, and a mechanical target. The IAC relay may also include one or more hinged armature instantaneous overcurrent units, with integral target.
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It is a Phase relay. It will protects your motor against Phase umbalance and phase sequence. It is selfpowered.
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The Intelligent Transmitter pairs with the iT Alarm, a DIN-rail mountable alarm with three programmable relays for use in vibration monitoring systems or process control systems. The iT401 Alarm, which compares the 4-20 mA input from the transmitter against user-defined high or low setpoints, triggers the relays and/or provides an alert when the input deviates from acceptable levels. The front panel controls and digital LED readout make this unit very user friendly.
The real advantage of this unit is that it can also be used with any 4-20 mA sensor, including pressure, temperature, flow, speed and especially Wilcoxons popular LPS vibration sensors.
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General characteristics:
- Pump protection (dry working protection) without external sensor
- Overload protection with thermal memory
- Phase aymmetry and phase sequence protection
- External display module for panel mounting (22 mm)
- Not connected to the motor line (passing through wires).
- Manual reset: when tripping as result of asymmetry or phase failure, the relay could be reset after 2 seconds; should tripping be caused by an overload, the waiting time to reset will be directly proportional to its severity, up to approximately 8 minutes.
- Remote reset: after the waiting time has elapsed by interrupting the auxiliary power supply and reconnecting it again after 3 seconds.
- Mounted on DIN rail EN50022-35.
- UL, cUL listed. Marked CE.
- Maximum terminal section : 2.5 mm2, No. 22-12 AWG.
- Maximum screw torque: 20 Ncm, 1.8 LB-IN.
- Norms: IEC 255-22, IEC 801, EN 50081-2, IEC-255, IEC-947
- Insulation: 2000V - 50Hz - 1min/3kV - 1.2/50 ΅s.
- Storage temperature: -30°C +70°C.
- Operation temperature / Maximum altitude:
-15°C +60°C / 1000 m.
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Vital is the heart of a new solution which makes it possible to install many different types of safety devices connected in the same safety circuit and still achieve safety category 4 according to EN 954-1. Dynamic sensors can be connected to the Vital. Sensors with output contacts can be connected to the Vital via Tina devices. Vital is a small (only 22.5 mm in width) electronic safety module which dynamically supervises many different types of safety devices.
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The INTs are safety monitoring relays designed to be used
with the 300-BT switches. They are ideal for
machine guarding and meet CE Category 3 and 4.
INTs are force-guided FailSafe and DIN Rail mountable.
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The SK-Series Control Relay is designed to be used in conjunction with safety elements such as Safety Contact Mats, Safety Contact Edges or Safety Contact Bumpers. The SK series relay utilized a current principle for monitoring the safety contact elements. This method of monitoring makes certain that the high demands for fault recognition as well as for safety are met. Relay switch status along with operating voltage status is displayed via LEDs. SK Series Relays are available in a variety of models depending on the application and conform to safety categories 2 and 3, EN 954-1 and are certified.
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Relay of safety: relay of safety level 1, relay of safety level 2, relay of safety level 3, relay of safety level 4, relay of emergency stop, relay of Bi-manual order, relay of immaterial barrier, etc
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The SafeC 200 safety relay takes over the evaluation of all standard safety components such as e.g. light curtains, emergency STOP buttons, safety edges or interlock switches.
Thanks to the high-performance integrated safety circuits of the SafeC 200, for the majority of applications no supplementary relay is needed. Additionally multiple status outputs ensure a simple communication with every standard SPS and guarantee a reliable and faultless controlling. Even the most demanding of applications relating to Safety Category 2 of EN 954-1 are fulfilled by the SafeC 200 safety relay.
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Emergency Stop Modules
Emergency switch relay for furnace applications
Safety gate monitors
Light-guard controllers
2-Hand safety relays
Standstill / Overspeed monitors
Positiv guided interface modules
Time-delay modules
Extension modules
Safety mat modules
Light curtain modules
Multifunction safety module
Safety switch
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ELESTA relays GmbH is one of the leading producers in the field of safety relays with forcibly guided contacts in accordance with EN 50205. Our range of products comprises 23 relay series. Relay advantages:
- Relays for switching currents from 5mA to 16A
- Contact mounting, 2 to 10 contacts
- Minimum coil capacities (holding power up to 80mW) and wide
coil working ranges
- RoHS-conforming and safe at higher solder process temperatures
- Minimum space requirement
- Reliable and rapid support
- Short delivery times
- Customized relay variants
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Functions: emergency stop, two hand, contacts expansion, many
configurations available
Power supply: 24Vac/Vdc;115,230Vac
Safety category: 2, 4, IIIA, IIIC
Dimensions: modular 22,5, 45mm
As per CEE machine directive 89/392/CEE
Norms: IEC 204-1, EN 60204-1, DIN/VDE 0113
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We have the most flexible safety relays on the market. A universal relay is a safety relay with various input options for various safety devices and risk levels. Internally, the safety relay is of the highest safety level (category 4 according to 954-1). A machine supplier can therefore, with one single safety relay, select the input configuration that best suits his customer's safety requirements.
Some of the advantages with JOKAB SAFETY's safety relays:
- Universal relays
- Excellent reliability
- Approved in Europe, USA, Canada
- Supervised reset
- Time reset
- Small and compact
- Detachable connector blocks
- Low power consumption
- Permits the use of long emergency stop cables
- EX compatibility
- Functions set by external hardwired links
- LED indication and outputs for indication
- Powerful switching capacity
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Take control of electrical safety
... with PMDsrange electronic monitoring relays
For electrical safety such as voltage or true power monitoring, electronic PMDsrange monitoring relays provide the optimum solution.
Complete machine control Standard-compliant and safe
for stand-alone machines and plants with up to 14 safety functions
PNOZ safety relays :
Use PNOZ safety relays for stand-alone machines and plants with up to 14 safety functions. You can use these to monitor functions such as E-STOP, safety gates, light curtains/light grids and many more, safely and in compliance with the standards
A wide range of safety applications are now available to customers :
- Safety relays PNOZ X
- Electronic safety relays PNOZelog
- The modular and freely configurable electronic safety system PNOZmulti
- The new PNOZ, PNOZsigma, with particularly narrow housing widths and multifunctionality compressed into each unit, represents maximum functionality in minimum width...
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Safety-implemented circuits must be control reliable as mandated in U.S. and European standards. Control reliability is not provided by simple redundancy. There must also be monitoring of the safety circuitry to assure that redundancy is maintained. Monitoring may be achieved by using Omron STI safety monitoring relays that range in function from two-hand palm button control to dual channel input units with time-delayed outputs that conform to ANSI B11.19-2003, Section 6.1 for Performance of the Safety Related Function(s). All safety relays carry the CE mark and are designed to incorporate three points of safety in their operation to meet both European and U.S. requirements. All safety relays are UL and C-UL listed.
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Multifunction Safety Units (MFUs) provide relay output switching capability. They are typically used in conjunction with the 1000 Plus Series range of safety light curtains, which incorporate two fail-safe, electronic output switches as standard. In addition to providing relay outputs they also provide additional functionality including muting, E-Stop inputs, manual / auto restart and external device monitoring (EDM).
Features:
- Suitable for a wide range of machine safeguarding applications
- Safety monitored output relays
- Safety integrity classification up to EN 954-1 - Category 4
- Simple installation
- External Device Monitoring (EDM)
- One year manufacturers warranty
- DIN Rail mounting - 70 mm enclosure
- LED status indicators
- Reset function
- Dual inputs for connecting emergency stop circuit
- Simultaneous monitoring between related channels
- Connect up to 2 light curtains
- Dual mute inputs
- Auxilliary electronic output for status indication
Product Range:
011-149 Safety relay outputs with dual safety light curtain inputs
011-150 Safety relay outputs with two dual safety light curtain inputs and E-Stop connection
011-151 Safety relay outputs with dual light curtain inputs and dual mute inputs
011-154 Safety relay outputs with dual light curtain inputs and dual mute inputs and mute enable
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Safety Relays ESM-F
A new innovative way to interconnect a number of safety modules with similar functions.
One principle: Modules with inputs are positioned to the left of the basic module and the output modules are placed on the right side.
Features
Individually pluggable modules
Input and output modules can be grouped according to function
Category 4 according to EN 954-1
Optionally extendable
Without programming
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The INTs are safety monitoring relays designed to be used with the
300-BT switches. They are ideal for machine guarding and meet CE
Category 3 and 4. INTs are force-guided FailSafe and DIN Rail mountable.
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Safety relay products can reliably monitor emergency stops, safety doors, light curtains and two hand control applications. Our innovative designs will allow the user to take advantage of the latest technology along with the standard connection advantages that users have grown to expect from Phoenix Contact:
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Monitoring relays, Protection relays
